His law being unchangeable (Hebrews 6:18), there remained nothing to do but to enforce that law.

Then Jehovah pronounced his judgment against them, the record of which reads: "Unto the woman he said, I will greatly multiply thy sorrow and thy conception; in sorrow thou shalt bring forth children; and thy desire shall be to thy husband, and he shall rule over thee.

And unto Adam he said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life; thorns also and thistles shall it bring forth to thee; and thou shalt eat the herb of the field; in the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return,"-- Genesis 3:16-19.
[47]Thus the perfect man forfeited his life.

He had been endowed with perfection of home, liberty, peace, happiness, and life everlasting on earth.

Now he must die and return to the dust from whence he was taken.
God did not put him to death immediately, but permitted him to have 930 years of experience that he might learn the baneful effects of sin.